Q COSTARICA — The national weather service, Instituto Meteorológico Nacional (IMN), predicts that on Tuesday, September 2, the lingering effects of Tropical Wave No. 27, which passed through on Monday, will bring isolated showers across the country.
Expect partly cloudy skies in the morning along the Pacific coast and some areas of the Central Valley.
By afternoon, rain showers with thunderstorms are likely along the Pacific coast, the western part of the Central Valley, and the mountains in the Northern Zone.
In the Caribbean regions, any rain is expected mainly over the mountainous areas.
The official Weather forecast for Tuesday, September 02, 2025:
This Tuesday, local atmospheric factors will be reinforced by the instability left behind by tropical wave #27 on Monday, creating favorable conditions for isolated rainfall across the country today.
In general, partly cloudy skies are expected in the morning on the Pacific slope and part of the Central Valley, with clouds moving in from the Caribbean Sea, causing variable cloudiness in the Northern Zone and Caribbean regions.
In the afternoon, showers with thunderstorms are expected along the Pacific coast, as well as in the western Central Valley and mountains of the Northern Zone; in the Caribbean regions, the possibility is limited to the mountainous areas.